Chert
Microcrystalline Quartz (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Chert
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Quartzite pebble
Quartzite (SiO2)
Chert / Flint
Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂
Amazonite
K(AlSi3O8) - Microcline
Granite
Phaneritic plutonic rock (SiO2 primary)
Jasper
Jasper (Silica/Silicon Dioxide, SiO2)
Jasper with Hematite
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Chert (including Flint and Jasper variants)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper (specifically Yellow and Red Jasper/Chert)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Pyrite
Iron Disulfide (FeS2)
Red Jasper
Silicon Dioxide (SiO2)
Peridotite (Dunite)
Olivine-rich Peridotite ((Mg,Fe)2SiO4)
Gypsum (Satin Spar / Alabaster variety)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
Chert (Flint variety)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert or Flint (polished/water-worn)
Chert (a microcrystalline or cryptocrystalline variety of quartz, SiO2). Flint is a specific variety of chert.
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
Chert (Quartz Variety)
Microcrystalline Silica (SiO2)
Chert (Quartz Variety)
Chert (SiO2)
Chert (Quartz Variety)
Microcrystalline Silica (SiO2)
Chert (Quartz Variety)
Chert (mostly SiO2 / Silicon Dioxide)
Chalcedony (Fire Agate or Carnelian variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (often called Jasper in this color)
Microcrystalline quartz (SiO2)
Chert (Smoky variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Jasper
Jasper (Silicon Dioxide) - SiO2
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert (often called Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Tan or Buffer variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Obsidian
Obsidian (Amorphous volcanic glass, SiO2 rich)
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)